摘要
针对传统永磁同步电机(PMSM)矢量控制,在分析参数变化带来的影响与电流环PI调节器之间关系的基础上,提出一种在线辨识PMSM电感和永磁体磁链的方法。该方法在同步旋转d,q坐标系下,利用d,q轴电流环PI调节器的输出对所辨识参数进行估算,并建立了基于参数辨识的表贴式PMSM的矢量控制系统,利用所建立的仿真和实验系统进行了仿真和实验研究。结果表明,所辨识参数能够快速准确地收敛到真实值,系统稳定后,电流环PI调节器输出为零,提高了系统的动态性能。
A new on-line identification method is proposed based on the analysis of the relationship between the effects of parametric variation and current loop PI regulators.This method utilizes outputs of the regulators to identify the parameters under d,q synchronous rotational coordinates.Simulation and experiment systems of the propose method are established based on the vector control of surface mounted PMSM.Simulation and experimental results demonstrate the validity of the proposed method, and the parameters can converge to actual value rapidly.When the system is stable, the outputs of the regulators converge to zero, so the dynamic performance can be improved.
出处
《电力电子技术》
CSCD
北大核心
2012年第7期78-80,共3页
Power Electronics
关键词
永磁同步电机
矢量控制
参数在线辨识
permanent magnet synchronous motor
vector control
on-line parameter identification
